MESOSCALE DISCUSSION 0813
   NWS STORM PREDICTION CENTER NORMAN OK
   0907 PM CDT SUN MAY 26 2013

   AREAS AFFECTED...CNTRL/ERN/NRN NEB

   CONCERNING...TORNADO WATCH 223...

   VALID 270207Z - 270330Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 223 CONTINUES.

   SUMMARY...ALL HAZARD THREATS CONTINUE NEAR-TERM WITH SUPERCELLS JUST
   N OF THE QUASI-STATIONARY FRONT. ADDITIONAL /PRIMARILY ELEVATED/
   TSTMS SHOULD DEVELOP EWD INTO NERN NEB WITH MAIN THREAT BEING LARGE
   HAIL. DOWNSTREAM SEVERE TSTM WATCH ISSUANCE IS POSSIBLE WITHIN THE
   NEXT 1-2 HOURS.

   DISCUSSION...02Z SURFACE ANALYSIS PLACED A QUASI-STATIONARY FRONT
   FROM 20 S BBW TO NEAR SDA. ALL SEVERE HAZARDS REMAIN POSSIBLE
   NEAR-TERM WITH SUPERCELLS JUST N OF THIS FRONT...BUT A GRADUALLY
   COOLING BOUNDARY LAYER AND UPSCALE GROWTH SHOULD YIELD A SLOWLY
   DIMINISHING TORNADO THREAT. LLJ HAS STRENGTHENED TO 40 KT PER KUEX
   VWP DATA. THIS WILL MAINTAIN CONTINUED ISENTROPIC ASCENT N OF THE
   FRONT AND INFLOW OF A STRONGLY BUOYANT AIR MASS. ELEVATED CONVECTION
   HAS BLOSSOMED IN THE PAST HALF HOUR IN N-CNTRL NEB /WHERE SURFACE
   TEMPERATURES ARE IN THE 60S/. THIS ACTIVITY SHOULD MAINLY POSE A
   THREAT FOR SEVERE HAIL AS IT DEVELOPS INTO NERN NEB.

   ..GRAMS.. 05/27/2013


   ATTN...WFO...FSD...OAX...GID...LBF...

   LAT...LON   41640037 42340026 42649900 42659812 42719703 42429635
               42029636 41169702 41039852 41070009 41640037